COMPUTATIONAL METHOD FOR MULTIPHASE INCOMPRESSIBLE FLOWS (MICS) AND ITS APPLICABILITY TO PARTICLE-LADEN LIQUID FLOWS

Abstract

A computational method for multiphase incompressible flows (MICS) has been proposed. The MICS is based on the CFD method for incompressible flows, in which the treatment for density and mass conservation has been improved in the collocated grid. The external forces for the particles are evaluated from the results of the fluid computations and a model of the distinct element method (DEM). It was shown that the particle drag coefficients and wake flows are successfully predicted with MICS. The MICS was applied to a falling particle near a side wall and non-uniform particles moving on the inclined bottom surface. As a result, it was demonstrated that MICS is effective to predict the particle-laden flows.